Wrench for waterproof watch cases



Mafch 25, 1947 7 GHlGLlERl V 2,417,926

WRENCH FOR WATERPROOF WATCH CASES Filed NOV. 21, 1944 I V EN TOR.

Patented Mar. 25, 1947 f UNITE,

WRENCH FOR WATERPROOF WATCH CASES LioydGhiglieri, Oakland, Calif.

Application November 21, 1944, Serial No. 564,489

2 Claims.

This invention relates to improvements in wrenches.

An object of my invention is to provide an improved wrench having a number of relatively adjustable jaw members which are arranged for engagement with devices of different sizes and shapes.

Another object of my invention is to provide an improved wrench having a number of angularly arranged jaw members which are capable of being relatively adjusted to different positions, whereby the wrench may be used to engage with devices of different sizes and shapes, as for instance the screwable backs of various types of waterproof watch cases.

A further object of my invention is to provide an improved wrench of the kind characterized, having novel means for mounting a number of adjustable jaw members whereby different sets of such members may be conveniently substituted one for another to permit the use of the wrench with waterproof watch cases or other devices having difierent shapes or constructions.

Other and further objects of my invention will be pointed out hereinafter, or will be indicated in the appended claims, or will be obvious to one skilled in the art upon an understanding of the present disclosure. For the purpose of this application I have elected to show herein certain forms and details of a wrench representative of my invention; it is to be understood, however, that the embodiment of my invention herein shown and described is for the purpose of illustration only, and that therefore it is not to be regarded as exhaustive of the variations of the invention, nor is it to be given an interpretation such as might have the effect of limiting the claims, short of the true and most comprehensive scope of the invention in the art.

In the accompanying drawings:

Fig. 1 is an end view of a wrench embodying the preferred principles of my invention;

Fig. 2 is a plan view of a part of the handle;

Fig. 3 is a top plan view of the wrench, without the parts of the handle shown in Figs. 2 and 4 in assembled positions;

Fig. 4 is a plan view, partly in section, of an adjustable part of the handle;

Fig. 5 is a side view of the completely assembled wrench; and

Fig. 6 is a bottom view of the same.

Referring to the drawings, the numeral I designates a shank having one of its ends threaded and. its opposite end formed with a flattened slotted supporting member 2. Pivotally connected as by a screw 3 to the supporting member 2 are two pairs of arms 4 and 5, one arm of each pair being positioned above the supporting member and the other arm of each pair being positioned below the said member. The arms, at their inner ends, are suitably grooved or cut away to'enable an opposing arm of one pair to be positioned in the same plane as the opposing arm of the other pair, as shown in Fig. 1.

Rotatably carried at the ends of the pairs of arms 4 and 5, respectively, are jaw supporting members 5 and l which are each provided with end openings or sockets for receiving removable jaws 8. The body portions of the jaws are of general cylindrical shape and each is suitably formed at its opposite ends with shoulders or the like. for engaging with a device to be rotated or firmly held. It is contemplated that the jaws 8 or others like them be provided with differently shaped and constructed ends so as to permit the use of the wrench with difierent shaped and constructed devices, slots or notches. The jaws 8 are preferably held in their sockets by set screws 9 which carry spring pressed engaging pins or balls (not shown). The upper ends of the jaw supporting members 6 and 1 are provided with diametrically disposed threaded openings, and operatively engaging therewith is an adjusting screw it having its opposite ends provided with left hand and right hand threads. Centrally secured to the screw in is a knurled disc II which when turned in one direction rotates the screw to actuate the free ends of the opposed pairs of arms 4 and 5 away from each other, and when turned in the opposite diection rotates the screw to actuate the pairs of arms about their pivots toward each other. adjusted toward or away from each other to suitably position them forengagement with elements of difierent sizes or shapes. The disc ll rotatably extends through the slot in the supporting member 2 and also in a position where it can be conveniently engaged for manipulation by an operators thumb.

Secured to the supporting member 2, as by the screws 3 and I6, is a slotted guard member [2 through which the disc ll projects.

Loosely mounted on the shank l is a tubular handle member l3 which is secured at its forward end to an elongated plate l4 having its opposite side edges arranged in substantially parallel relationship. The side edges of the plate [4 are engaged by a pivoted guide l5 which is secured to the supporting member 2 by a screw IS.

The forward end of the plate l4 carries a jaw Thus the jaws 8 may be supporting member I! which has a jaw I8 detachably mounted therein. The jaw 18 is similar to the other two jaws 8 and 8, and it provides a thirdmember for engaging with an element to be re: tated or firmly held.

Threaded on the end of the shank i is a rotatable adjusting member l9 having an inwardly projecting annular flange I9 at one end which is adapted to engage with a projection 13' at the rear end of the tubular handle member l3. By turning the adjusting member 19 to the right the handle member I3 is moved forwardly to bring the jaw l8 into closer relationship to the other jaws 8 and 8, and when turned in the opposite direction the jaw I8 is carried rearwardly By the adjustment of the jaws 8 and 8 through the manipulation of the disc II, and the adjustment of the jaw I 8 by means of the member IS, the said jaws may be relatively adjusted to engage with devices or elements of different sizes or shapes. By substituting one set of jaws for another set having a different shape and construction, the wrench may be used to unscrew or hold the removable backs of watches of different makes.

Similarly, by employing jaws or other types of engaging members, the wrench may be satisfactorily used for various other purposes. It is therefore to be understood that the term jaws as herein employed shall be construed to include pins, sockets or other types of engaging members adapted to connect with or fasten to difierent devices or elements.

Having described my invention, what I claim is:

1. In a wrench, a supporting structure, lever arms pivotally connected to the supporting structure by a common pivot member, rotatable jaw carrying members mounted on the arms, jaws carried by the jaw carrying members, and common screw means engaging with the jaw carrying members for simultaneously moving the arms about their pivots, whereby the jaws may be adjusted toward or from each other.

2. In a wrench, a supporting structure, lever arms pivotally connected to the supporting structure by a common pivot member, rotatable jaw carrying members mounted on the arms, jaws carried by the jaw carrying members, common screw means engaging with the jaw carrying members for simultaneously moving the arms about their pivots, whereby the jaws may be adjusted closer to or farther from one another, an adjustable element mounted on the supporting structure and arranged for adjustment toward or from a plane passing through the axes of the aforesaid jaws, means for adjusting the adjustable element, and another jaw carried by the adjustable element, the jaws being arranged in triangular formation for engagement with an object at three spaced points thereon.

LLOYD GHIGLIERI.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 2,403,264 Cormier July 2, 1946 1,313,271 Danner Aug. 19, 1919 1,162,059 Hersey Nov. 30, 1915 1,322,370 Strathern Nov. 18, 1919 494,310 Wensing Mar. 28, 1893 674,778 Lagerbeck May 21, 1901 761,523 Miller May 31, 1904 943,935 Hoffman Dec. 21, 1909 1,063,717 Metcalf June 3, 1913 2,139,900 Parker Dec. 6, 1938 FOREIGN PATENTS Number Country Date 319,883 German Apr. 10, 1920 815,994 French Apr. 19, 1937 

